Backpack cooler



FIG. 1 is a top, front, right perspective view of a backpack cooler showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a top, back, left perspective view thereof.

The even-length broken lines within the shaded area represent unclaimed stitching. The uneven-length broken lines immediately adjacent to the shaded area define the bounds of the claimed design and form no part thereof. The even-length broken lines showing the remainder of the backpack cooler represent unclaimed subject matter and form no part of the claimed design. 

CLAIM The ornamental design for a backpack cooler, as shown and described. 